<!--  -->
<template>
  <div class="star" :class="`star-${size}`">
    <span
      class="star-item"
      v-for="(sc, index) in starClass"
      :class="sc"
      :key="index"
    ></span>
  </div>
</template>

<script>
import { ascii } from "posix-character-classes";

export default {
  data() {
    return {};
  },
  props: {
    score: Number,
    size: Number,
  },
  computed: {
    starClass() {
      const { score } = this;
      const scs = [];
      const scoreInt = Math.floor(score);
      for (let i = 0; i < scoreInt; i++) {
        scs.push("on");
      }
      if (score * 10 - scoreInt * 10 >= 5) {
        scs.push("half");
      }
      for (let i = 0; i < 5 - scs.length; i++) {
        scs.push("off");
      }
      return scs;
    },
  },
};
</script>
<style lang='stylus' rel='stylesheet/stylus'>
@import '../../common/stylus/mixins.styl';

.star { // 2x图 3x图
  float: left;
  font-size: 0;

  .star-item {
    display: inline-block;
    background-repeat: no-repeat;
  }

  &.star-48 {
    .star-item {
      width: 20px;
      height: 20px;
      margin-right: 22px;
      background-size: 20px 20px;

      &:last-child {
        margin-right: 0;
      }

      &.on {
        bg-image('./images/stars/star48_on');
      }

      &.half {
        bg-image('./images/stars/star48_half');
      }

      &.off {
        bg-image('./images/stars/star48_off');
      }
    }
  }

  &.star-36 {
    .star-item {
      width: 15px;
      height: 15px;
      margin-right: 6px;
      background-size: 15px 15px;

      &:last-child {
        margin-right: 0;
      }

      &.on {
        bg-image('./images/stars/star36_on');
      }

      &.half {
        bg-image('./images/stars/star36_half');
      }

      &.off {
        bg-image('./images/stars/star36_off');
      }
    }
  }

  &.star-24 {
    .star-item {
      width: 10px;
      height: 10px;
      margin-right: 3px;
      background-size: 10px 10px;

      &:last-child {
        margin-right: 0;
      }

      &.on {
        bg-image('./images/stars/star24_on');
      }

      &.half {
        bg-image('./images/stars/star24_half');
      }

      &.off {
        bg-image('./images/stars/star24_off');
      }
    }
  }
}
</style>